摘要
目的评估两台全自动生化分析仪部分检测项目结果间的偏倚。方法以参加室间质评的HITACHI 7180检测系统为比对方法(X),实验室内部急诊使用的HITACHI 7020检测系统为实验方法(Y),每天测定5个样本15个项目的高、中、低值,连续测定8 d,并对结果进行分析评估。结果两检测系统间7个项目差异无统计学意义(P>0.05),而另8个项目差异有统计学意义(P<0.05),需要校正。各项目经回归分析,相关性良好(r≥0.989)。结论两台仪器部分检测项目存在偏倚无显著性差异。另外,存在差异的项目,经过校正之后也具有较好的相关性,在实验室实际应用中检测效果较好。
Objective To evaluate the bias of partial detecting items between two automatic biochemistry analyzers. Methods 15 items were continuously detected for 5 days with each 5 samples of high,moderate and low values,taking HITACHI 7180 system, used for external quality assessment,as control method（X）, and HITACHI 7020 system, used for internal emergency tests, as experimental method（Y）. Results 7 items without statistical differences （P〉0.05） ,and 8 with statistical differences （P〈0.05） be tween the two systems were detected. Regression analysis indicated that there were fine correlation of all 15 items（r≥0. 989） after correction. Conclusion There are partial items with significant bias, fine correlation of which could be acquired by correction, between the two systems.
出处
《国际检验医学杂志》
CAS
2011年第9期925-926,共2页
International Journal of Laboratory Medicine
关键词
偏差
生化分析仪
比对试验
uncertainty
biochemical analyzer
comparison test
